A set of 3 worksheets containing exam-style questions and answers on particle motion and pressure in gases, part of AQA GCSE Physics and Combined Science. Worksheet 1 - Describing motion of gas particles and a basic explanation of gas pressure and how this is affected by volume and temperature. Worksheet 2 - Physics only - Explaining how pressure changes when using a syringe and using the pV = constant equation to calculate pressure. Worksheet 3 - Physics only - further calculation practise using pV = constant. Answers in Mark Scheme style are included.

A set of four worksheets and answers to cover the structure of the eye, accommodation, defects and adaptation to varying light levels, within the Homeostasis topic in GCSE Biology. Worksheet 1: Label each structure within the eye and explain the function. Worksheet 2: Explain accommodation for seeing near and distant objects. Worksheet 3: Explain the common eye defects myopia and hyperopia and describe their treatments. Worksheet 4: Explain how the eye adapts to bright and dim light. These worksheets were designed to match the AQA Biology specification and will cover parts of the Edexcel Biology specification also.

Calculation practise using equations associated with electrical power: Power = energy x time, Power = current x voltage and Power = current squared x resistance. Answer included.

A worksheet for recording the symbols, units and unit symbols associated with electrical properties and for looking at the equations that use them. GCSE Physics and Combined Science. Suitable for AQA and Edexcel.

Worksheet and answers to label and explain the structure and function of a neurone for the GCSE Biology and Combined Science topic Homeostasis.